Publication: Construction of cubature formula for double integration with algebraic singularity by spline polynomial
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Date
2015
Journal Title
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Volume Title
Publisher
Institute of Electrical and Electronics Engineers Inc.
Abstract
In this note, singular integration problems of the form H? (h) = ??? h(x,y)/|-x0|2-? dA, 0 ? ? ? 1, where ? = [x0,y0] � [b1, b2], x= (x,y) ? ? and fixed point x 0 = (x0,y0) ? ? is considered. The density function h(x, y) is assumed given, continuous and smooth on the rectangle ? and belong to the class of functions C2,?(?). Cubature formula for double integrals with algebraic singularity on a rectangle is constructed using the modified spline function S?(P) of type (0, 2). Highly accurate numerical results for the proposed method is given for both tested density function h(x, y) as linear, quadratic and absolute value functions. The results are in line with the theoretical findings. � 2015 IEEE.
Description
Keywords
Numerical methods, Absolute values, Cubature formula, Double integrals, Double-integration, Fixed points, Highly accurate, Integration problems, Spline functions, Algebra